Benjelloun Touimi, Yassine, Abdeladim Hadioui, Noureddine El Faddouli, and Samir Bennani. 2020. “Intelligent Chatbot-LDA Recommender System”. International Journal of Emerging Technologies in Learning (iJET) 15 (20):pp. 4-20. https://doi.org/10.3991/ijet.v15i20.15657.